Product description
Koshi carbon steering thumb covers Alfa Romeo 4C
The Alfa Romeo 4C steering wheel side grips curve around the thumb positions. These Koshi covers follow those shaped surfaces and repeat the characteristic open form on both sides. AR4C-048 places the carbon accent beside the wheel centre rather than on the lower U-shaped section.
Shaped left and right trim
The product image shows two oppositely shaped covers. Koshi describes OEM overlays using 0.6 mm prepreg carbon. The material is cured in an autoclave, carrying the shaped construction around the curved inner edges as well. The original grip outline remains the starting point.
Seven finishes beside the wheel centre
Available options are Carbon, Matt, White, Yellow, Orange, Red and Blue. Matte coordinates differently from gloss, while the colour versions emphasise the two side surfaces. The installation image shows the covers within the wheel interior. The circular surround and lower steering wheel cover are separate trim components.






